Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

Contributions of interference and non-interference components to CP asymmetries in heavy meson decays

This paper proposes a novel phase-space partitioning scheme using Legendre polynomial zeros and sign-function weighting to define new CP asymmetry observables that effectively separate interference and non-interference contributions in multi-body heavy meson decays, demonstrating their utility in analyzing the B±π±π+πB^\pm\rightarrow\pi^\pm\pi^+\pi^- channel near the ρ0(1450)\rho^0(1450) resonance with LHCb data.

Jing-Juan Qi, Yi-Fan Zhao, Jin-Xia Liu, Zhen-Hua Zhang, Xin-Heng Guo, Zhen-Yang Wang2026-05-27⚛️ hep-ph

Testing lepton-flavor-violating decay of doubly charged Higgs bosons in type-II seesaw via photon fusion at the high-energy LHC

This paper investigates the potential of the 100 TeV high-energy LHC to probe lepton-flavor-violating decays of doubly charged Higgs bosons produced via photon fusion in the type-II seesaw model, demonstrating that an integrated luminosity of 3 ab1^{-1} could exclude triplet scalar masses up to approximately 1150 GeV under the inverted neutrino mass hierarchy.

Hang Zhou, Ning Liu2026-05-27⚛️ hep-ph

Improved Big Bang Nucleosynthesis constraints on decaying massive relics

This paper presents updated and improved Big Bang Nucleosynthesis constraints on heavy, long-lived beyond-the-Standard-Model relics decaying into Standard Model particles by incorporating refined nuclear reaction rates, modern abundance measurements, advanced simulation tools like PYTHIA 8, and a more sophisticated treatment of hadronic and electromagnetic injection effects.

Sara Bianco, Jonas Frerick, Marco Hufnagel, Kai Schmidt-Hoberg2026-05-27⚛️ hep-ph

Azimuthal asymmetry in exclusive quasi-elastic neutrino-nucleus interactions

This paper derives and demonstrates that exclusive quasi-elastic neutrino-nucleus scattering exhibits a parity-violating azimuthal asymmetry in the outgoing nucleon distribution, which is sensitive to nuclear modeling and potentially observable with current-generation detectors to improve neutrino energy reconstruction.

Marco Vanderpoorten, Ashish Kumar Jha, Mathias El Baz, Kajetan Niewczas, Federico Sanchez, Natalie Jachowicz2026-05-27⚛️ nucl-th

Looking for Condensed Gluons: A Cross-Scale Journey from the Deep Structure of Protons to High-Energy Cosmic Rays -- A Mini-Review

This mini-review proposes that gluon condensation, driven by the nonlinear dynamics of the Zhu-Shen-Ruan equation, serves as a critical bridge connecting the deep internal structure of protons to high-energy cosmic gamma-ray phenomena, potentially explaining broken-power-law spectral features and offering a unified framework for exploring extreme quantum chromodynamics across multiple fields of physics.

Wei Zhu, Yu-Chen Tang, Ye-Yin Zhao, Bo Yang, Yu-Chen Xiong2026-05-27⚛️ hep-ph

Flow-Based Global Proposals for Monte Carlo Sampling in SU(2) Lattice Gauge Theory

This paper introduces and validates a formally correct machine-learning-based global proposal mechanism for Monte Carlo sampling in SU(2) lattice gauge theory, demonstrating its ability to reproduce target ensembles and achieve modest efficiency gains in hybrid configurations while serving as a proof-of-principle foundation for future extensions to larger lattices and non-Abelian theories.

Seung-il Nam2026-05-27⚛️ hep-lat

Effective Phantom Dark Energy: What Cosmological Reconstruction Does and Does Not Imply

This paper clarifies that observational evidence for effective phantom dark energy, derived from background-level reconstructions within standard cosmological assumptions, does not necessarily imply the existence of fundamental phantom fields, microscopic instabilities, or a catastrophic cosmic future, but rather can arise from various physical mechanisms without violating fundamental energy conditions.

Swagat S. Mishra2026-05-27✓ Author reviewed ⚛️ hep-ph